Jerry,
Without hesitation I would recommend Gary at Jet Tech.
https://www.jettechusa.com/
I have purchased a number of fuel tanks from Gary, and I contacted him a few weeks ago about making a pair of custom exhaust pipes for my scratch built Buccaneer project. These pipes aren't a simple tube, but a complex 2-piece angled design.
He couldn't have been more helpful and after multiple calls and e-mails we worked through adjusting the pipe design into a solution that he felt would work and that he could build.
We face-timed today as he was working through the build where he had a few questions that I could answer. The pipes were looking good.
Paul